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Mathematical Understanding of physics of turbulence, self-precipitation, and averaged flow in porous media

Research Project

Project/Area Number 20K03771
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related
Research InstitutionAoyama Gakuin University

Principal Investigator

Suzuki Takehito  青山学院大学, 理工学部, 助教 (10451874)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords非線形動力学 / 熱 / 流体 / 自己沈殿 / 一次相転移 / ゆっくり地震 / 高速地震 / BKモデル / 熱・流体・空隙相互作用 / 相転移 / 流体圧 / 空隙率 / 地震周期 / 多孔質媒質 / 乱流 / 平均流 / 普遍性 / 数理的取り扱い
Outline of Research at the Start

地震現象などへの応用を念頭に、地中の岩石を模した多孔質媒質中の流れ、特に乱流と自己沈殿(固相物質がはがれて他の場所に沈着する)の振る舞いを包括的に理解する枠組みの構築を目指す。乱流エネルギーkとその散逸率εで乱流を記述するk-εモデルに対して、空隙率φ及び高周波数成分を平均化した平均流Uの変化も加えた四変数非線形系を考え、特に流れの安定性・不安定性を議論する。

Outline of Final Research Achievements

The turbulent flow within porous media and the pore healing due to the self-precipitation have been found to affect dynamic earthquake slip processes. For the unified understanding with these effects, I have constructed the framework with the spring-block model, the interaction among heat, fluid pressure, and porosity, and the self-precipitation. With this framework, I found that the difference between the fast and slow earthquakes, which are qualitatively different phenomena, can be understood as the first-order phase change.

Academic Significance and Societal Importance of the Research Achievements

地震という現象から非線形動力学的成果を得たことが重要である。非線形動力学はあらゆる現象を対象にするが、地震現象はその中に入っていないことが多い。しかし本研究によりそこに一石を投じることができた。日本は地震国であるから、そう言った数理物理的分野をリードする可能性を示した。地震の予測というよりも数理的成果に重きを置いたことを強調したい。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (40 results)

All 2024 2023 2022 2021 2020

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (37 results) (of which Int'l Joint Research: 10 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] Deriving the slip-front propagation velocity with slip-dependent and slip-velocity-dependent friction laws via the use of the linear marginal stability hypothesis2022

    • Author(s)
      Suzuki Takehito
    • Journal Title

      Physical Review E

      Volume: 106 Issue: 1

    • DOI

      10.1103/physreve.106.015002

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characteristic Sensitivity of Turbulent Flow within a Porous Medium under Initial Conditions2021

    • Author(s)
      Suzuki Takehito
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 90 Issue: 2 Pages: 024401-024401

    • DOI

      10.7566/jpsj.90.024401

    • NAID

      40022484964

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 語長による多言語テキストの構造解析2024

    • Author(s)
      水口毅・鈴木岳人
    • Organizer
      日本物理学会2024年春季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 語長によるテキストの構造解析2023

    • Author(s)
      水口毅・鈴木岳人
    • Organizer
      MIMS現象数理学研究拠点共同研究集会「社会物理学とその周辺」
    • Related Report
      2023 Annual Research Report
  • [Presentation] ゆっくり・高速地震遷移条件の解析的取り扱いとその妥当性2023

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本地震学会2023年度秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] バネ・ブロックモデルにおけるエネルギー保存則に基づくゆっくり・高速地震遷移条件の導出2023

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Condition of transition between slow and fast earthquakes in terms of fluid pressure and porosity2023

    • Author(s)
      Suzuki, T., and H. Matsukawa
    • Organizer
      International Joint Workshop on Slow-to-Fast Earthquakes 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural analysis of written texts in terms of word sequence2023

    • Author(s)
      Mizuguchi, T., and T. Suzuki
    • Organizer
      Statphys28
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Systematic understanding of slow and fast earthquakes in terms of the porosity evolution law2023

    • Author(s)
      Suzuki, T., and H. Matsukawa
    • Organizer
      IUGG Berlin 2023, the 28th General Assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of the upper limit of the porosity on variation of behavior of slow and fast earthquakes2023

    • Author(s)
      Suzuki, T., and H. Matsukawa
    • Organizer
      JpGU Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] バネ・ブロックモデルと熱・流体・空隙効果による微動の成因の理解2023

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Presentation] 付加体の圧縮場を模した粉粒体の力学的挙動の粒子間摩擦依存性2023

    • Author(s)
      清水柊汰・鈴木岳人・松川宏
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] バネ・ブロックモデルと熱・流体・空隙相互作用に基づく微動の振る舞いの多様性の解析2023

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本応用数理学会第19回研究部会連合発表会
    • Related Report
      2023 Annual Research Report 2022 Research-status Report
  • [Presentation] 付加体の圧縮場を模した粉粒体の力学的挙動の粒子間摩擦依存性2023

    • Author(s)
      清水柊太・鈴木岳人・松川宏
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Investigating the mechanism of the transition from slow to fast earthquakes using the BK model and interaction among heat, fluid pressure and porosity2022

    • Author(s)
      Suzuki, T., and Matsukawa, H.
    • Organizer
      AGU Fall Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 品詞分類による英文テキストの構造解析2022

    • Author(s)
      水口毅・鈴木岳人
    • Organizer
      MIMS共同研究集会「社会物理学とその周辺」
    • Related Report
      2022 Research-status Report
  • [Presentation] BKモデルと熱・流体・空隙相互作用に基づくゆっくり-高速地震遷移の多様性の理解2022

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本地震学会2022年度秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Analytical understanding of condition of slow and fast earthquakes based on the BK model and the interaction among heat, fluid pressure and porosity2022

    • Author(s)
      Suzuki, T., and Matsukawa, H.
    • Organizer
      International Joint Workshop on Slow-to-Fast Earthquakes 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 機能語内容語分類による英文テキストの構造解析2022

    • Author(s)
      水口毅・鈴木岳人
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 前震-本震系列の繰り返し周期の透水係数への依存性2022

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 粉粒体の力学的挙動の粒子間摩擦依存性2022

    • Author(s)
      清水柊汰・鈴木岳人・松川宏
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Condition for the transition from slow to fast earthquakes analyzed by the BK model with the interaction among heat, fluid pressure, and porosity2022

    • Author(s)
      Suzuki, T., and Matsukawa, H.
    • Organizer
      JpGU Meeting 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 文章中の単語の出現頻度ランク列における負の相関2022

    • Author(s)
      水口毅・山本卓也・鈴木岳人
    • Organizer
      MIMS共同研究集会「社会物理学とその周辺」
    • Related Report
      2021 Research-status Report
  • [Presentation] 熱・流体・空隙率相互作用によるゆっくり地震から高速地震への遷移とその機構-バネ・ブロックモデルによる解析-2022

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Research-status Report
  • [Presentation] BKモデルと熱・流体・空隙相互作用によるゆっくり・高速地震遷移条件の数理的解析2022

    • Author(s)
      鈴木岳人・松川宏
    • Organizer
      日本応用数理学会第18回研究部会連合発表会
    • Related Report
      2021 Research-status Report
  • [Presentation] Conditions for ordinary and slow earthquakes in terms of the analytical forms of the intruding and extruding slip-front-propagation velocities2021

    • Author(s)
      Suzuki, T.
    • Organizer
      AGU Fall Meeting 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 2種類の滑り伝播端形状に対する伝播速度の存在条件とその物理的解釈2021

    • Author(s)
      鈴木岳人
    • Organizer
      日本地震学会2021年度秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 1次元モデルでの2種類の滑り分布における滑り端伝播速度の存在条件2021

    • Author(s)
      鈴木岳人
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Systematic treatment for the slip-front-propagation velocity with general friction laws and its implications for ordinary and slow earthquakes2021

    • Author(s)
      Suzuki, T.
    • Organizer
      Int. Joint Workshop on Slow Earthquakes 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] Systematic understanding of the slip-front-propagation velocity in terms of Linear Marginal Stability Hypothesis2021

    • Author(s)
      Suzuki, T.
    • Organizer
      JpGU Meeting 2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 多孔質媒質中におけるk-epsilonモデルに現れる初期条件鋭敏性とその数理的応用2021

    • Author(s)
      鈴木岳人
    • Organizer
      日本応用数理学会第17回研究部会連合発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] 回転型実験装置による粉体の摩擦実験2021

    • Author(s)
      遠藤峻平、西尾泉、鈴木岳人、松川宏
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 1次元モデルにおける滑り伝播端の2つの形状と多様な伝播速度2021

    • Author(s)
      鈴木岳人
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Slip-front-propagation velocity with non-vanishing friction stress at infinitely large slip velocity2020

    • Author(s)
      Suzuki, T. and H. Matsukawa
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] スロー地震と巨大地震が共存する浅部デコルマの断層破壊メカニズム:掘削資料を用いた断層破壊数値計算による検討2020

    • Author(s)
      矢部優・鈴木岳人
    • Organizer
      JpGU-AGU Joint Meeting 2020
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 多孔質媒質中の乱流に見られる渦粘性の初期値鋭敏性の解析的分類2020

    • Author(s)
      鈴木岳人
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 2種類の滑り端伝播と線形臨界定性解析によるその伝播速度の解析2020

    • Author(s)
      鈴木岳人
    • Organizer
      日本地震学会2020年度秋季大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Competing thermal pressurization and dilatancy hardening realizes coexistence of fast and slow slip on the shallow plate boundary fault2020

    • Author(s)
      Yabe, S., Y. Hamada, and T. Suzuki
    • Organizer
      AGU20 Fall Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Introducing Linear Marginal Stability Hypothesis for Obtaining Slip-Front-Propagation Velocity with the Slip- and Slip-Velocity-Dependent Friction Law,2020

    • Author(s)
      Suzuki, T.
    • Organizer
      AGU20 Fall Meeting
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Book] 問題を解くことで学ぶベクトル解析-楽しみながら解くことを意識して-2023

    • Author(s)
      鈴木岳人
    • Total Pages
      192
    • Publisher
      コロナ社
    • ISBN
      9784339061307
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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